'The Masked Singer': Yeti iced out of finals, Cluedle-Doo unmasked in double-reveal show

Spoiler alert! The following contains details from the May 19 episode of Fox's "The Masked Singer," including the identity of the unmasked celebrities.

Last week's "Masked Singer" revealed three Russian Dolls lurked inside the costume before they were sent home. This week, stars beneath two costumes were unmasked.

In addition to the singing celebrity who didn't make it past tonight's semifinals, the mysterious and antagonistic Cluedle-Doo removed his beak.

The panel – Ken Jeong, Jenny McCarthy, Nicole Scherzinger and Robin Thicke – kept things rolling with former Hootie & the Blowfish singer Darius Rucker.

As the fivesome poured over the typical clue packages, additional clues were delivered to the panel via parachute, revealing a connection to each one of the show's sleuths.

Here's how the night went down.

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'Go Yeti!': The panel celebrates the icy player

Clues: During the creature's clue package, Yeti spoke of reuniting with his father as an adult. Also, serving as tips for the challenger's identity, signs for the North Pole and the Post Office, as well as a pair of grandfather clocks were included.

His performance of "Celebration" by Kool & The Gang had Scherzinger screaming and Rucker shouting "Go Yeti!"

The contestant's parachuted clue – a surfboard that read Santa Monica – targeted Scherzinger. "Nicole, I'll never forget the time that we was rubbin' elbows down in Santa Monica," Yeti said.

Guesses: Scherzinger thought of R&B singer Marques Houston and "Let's Do It Again" singer J Boog. Jeong beliebed Justin Bieber was beneath the costume, while Rucker went with "Thong Song" singer Sisqó.

Black Swan's 'Tequila' is top shelf

Clues: Thicke, son of the late actor and Canadian-native Alan Thicke, got excited when he saw an illustration of a maple leaf in Black Swan's clue package. The snippet also included a name tag that read "Hello my name is 1" and a fish tank.

Black Swan's pick of Dan + Shay's "Tequila" was the perfect song to showcase her talent. Rucker raved the contestant had a "great voice." Host Nick Cannon called the performance "incredible, amazing."

Black Swan's drop-in clue further addressed Thicke. A celebrity VIP bracelet alluded to their high-profile hang. "Robin, I'm such a huge fan, I love your music, I even love your dad jokes," Black Swan said. "It was great bumping into you at that after party."

Guesses: Jeong put his money on Icelandic singer Björk. Rucker suspected the bird could be "Ironic" singer Alanis Morissette. While this might sound crazy, Thicke's instincts pointed to "Call Me Maybe" singer Carly Rae Jepsen.

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Jeong 'wanted more' of Chameleon

Clues: In his clue package, Chameleon recalled how constantly moving around during his childhood was "very challenging." The package also placed an emphasis on a stack of bricks and a double-decker bus.

Chameleon's version of "Oh Boy" by Cam'ron, featuring Juelz Santana, hooked Jeong. "I wanted more!" he said.

A golden snake dropped out of the parachute for Rucker to remind the musician of a time he and Chameleon were together. "We shared the stage and Phoenix was there, and the corn dogs were delicious," the contestant said.

Guesses: Rucker hoped to score a touchdown with Arizona Cardinals' wide receiver Larry Fitzgerald Jr. McCarthy's gut told her rapper RiFF RAFF was beneath the Chameleon suit. Jeong threw "I’m Different" artist 2 Chainz into the mix.

Piglet delivers 'perfection'

Clues: Piglet revealed he's slowed down in recent years. "I had a grueling schedule for most of my career," he said. "But now, I just love the simple life, at home with my family. Landscaping, grilling and football Sunday Funday. That's my happy place."

Piglet's performance of Lewis Capaldi's "Bruises" floored Scherzinger. "That was your strongest vocal performance by far," she praised. "That was perfection."

A poker chip dropped from the parachute for McCarthy and added an additional clue. "Well, I'll always go all in for you," Piglet said, "especially for charity.

Guesses: The clues, for McCarthy, painted a picture of 98 Degrees singer Drew Lachey. Jeong brought up Good Charlotte lead singer Joel Madden, while Rucker's instincts suggested country musician Tim McGraw.

Cluedle-Doo ruffles feathers

Cluedle-Doo's reign of terror came to an end Wednesday night. Following Piglet's performance, he revealed his plans to unmask but not before taking the stage.. His rendition of Mark Morrison's "Return of the Mack" amazed Jeong. "That was outstanding," he lauded. "That was like insanely good."

And according to a parachuted-in giraffe, it seems the two have a deeper connection. "Ken, this is not the first time we've been around animals together, but it will be the last," said Cluedle.

Jeong and Rucker bet on "The King of Queens" actor Kevin James. Thicke and Scherzinger guessed Oscar-winner Jamie Foxx. McCarthy locked in on "Locked Up" singer Akon.

Cluedle-Doo turned out to be none other than McCarthy's husband, Donnie Wahlberg.

The big reveal inspired Thicke to make a run with McCarthy's Golden Ear trophy that she received for correctly guessing the highest number of contestants last season.

Scherzinger encouraged Thick to "take it and run."

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There's an 'Ice Box' where Yeti used to be

In this week's elimination, Yeti was ousted, just ahead of the finals. Before the famous face beneath the fur was revealed, Cannon shared the panel's first guesses and gathered their final hunches.

Jeong stuck with Bieber. Scherzinger traded "Savage Love" singer Jason Derulo for "Let Me Love You" artist Mario, who was McCarthy's first hunch. McCarthy settled on "Miss Independent" singer Ne-Yo. Thicke stayed with B2K vocalist Omarion, and Rucker doubled-down on Sisqó.

Thicke had the right idea! Yeti, who was iced out of the competition, turned out to be "Ice Box" singer Omarion.

Omarion said he participated in the show to be challenged. "This was an amazing experience, so thank you guys for all of your compliments," he added. "I truly appreciate it, and I had so much fun."

Episodes of "The Masked Singer" can be viewed on Fox's website.

This article originally appeared on USA TODAY: 'Masked Singer': Omarion, Donnie Wahlberg unmasked as Yeti, Cluedle-Doo